Thermon Group Holdings
THR was delisted on the 29th of May, 2026.
215 hedge funds and large institutions have $1.65B invested in Thermon Group Holdings in 2026 Q1 according to their latest regulatory filings, with 65 funds opening new positions, 56 increasing their positions, 73 reducing their positions, and 40 closing their positions.
71% more call options, than puts
Call options by funds: $3.44M | Put options by funds: $2.01M
63% more first-time investments, than exits
New positions opened: 65 | Existing positions closed: 40
35% more capital invested
Capital invested by funds: $1.23B → $1.65B (+$427M)
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
11% more funds holding
Funds holding: 193 → 215 (+22)
0.37% less ownership
Funds ownership: 100.41% → 100.04% (-0.37%)
23% less repeat investments, than reductions
Existing positions increased: 56 | Existing positions reduced: 73
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MF
Magnetar Financial
Evanston,
Illinois
|
+$35.3M |
| 2 |
Citigroup
New York
|
+$26.4M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$25.8M |
| 4 |
AAM
Alpine Associates Management
Palm Beach,
Florida
|
+$22.6M |
| 5 |
SFM
Soros Fund Management
New York
|
+$20.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
-$47.1M |
| 2 |
GKIM
GW&K Investment Management
Boston,
Massachusetts
|
-$31.4M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
-$27.2M |
| 4 |
Brown Advisory
Baltimore,
Maryland
|
-$20.9M |
| 5 |
Hotchkis & Wiley Capital Management
Los Angeles,
California
|
-$17.3M |
THR Hedge Fund Activity: Q1 2026 in Review
215 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Thermon Group Holdings (THR) for Q1 2026, worth a combined $1.65B — up 35% from $1.23B a quarter earlier.
Buyers outnumbered sellers: 65 funds opened new THR positions and 40 closed out — a net gain of 25 holders — while 56 added to existing stakes and 73 trimmed.
The largest buyer was Magnetar Financial, opening a new position worth an estimated $35.3M. The largest seller was Morgan Stanley, cutting an estimated $47.1M.
- 215 institutional investors held Thermon Group Holdings (THR) as of Q1 2026, up from 193 in Q4 2025.
- Funds reported $1.65B of Thermon Group Holdings stock for Q1 2026, up 35% quarter-over-quarter.
- 65 funds opened new Thermon Group Holdings positions in Q1 2026 and 40 closed out, a net change of +25 holders.
- The largest Thermon Group Holdings buyer in Q1 2026 was Magnetar Financial, an estimated $35.3M added.
- The largest Thermon Group Holdings seller in Q1 2026 was Morgan Stanley, an estimated $47.1M sold.
Based on aggregated 13F filings for Q1 2026.